The interview process is a multi-stage process for hiring new employees. The interview process typically includes the following steps: writing a job description, posting a job, scheduling interviews, conducting preliminary interviews, conducting in-person interviews, following up with candidates and making a hire.
Interview questions [1]
Question 1
Statistics and probability, linear regression etc.
phone screen, then OA, then interview, asked the classic question "what's your biggest strength and weakness?", coding interview is 2 hard leetcode Dynamic programming. very difficult, no hint from interviewer
Normal interview process, not too lengthy, hr was very nice and replied to all my emails. The questions were a bit hard, and it needs some preparation before going into the interview.
I applied online. The process took 6 months. I interviewed at Citadel (London, England) in Nov 2024
Interview
HR interviews then met different people and was asked to do a case study involving data analysis using Python.
In the end I never really received a feedback and I am not sure if they even looked at the case study
Quant Researcher applicants have rated the interview process at Citadel with 3.4 out of 5 (where 5 is the highest level of difficulty) and assessed their interview experience as 48% positive. To compare, the company-average is 46.4% positive. This is according to Glassdoor user ratings.
Candidates applying for Quant Researcher roles take an average of 14 days to get hired, when considering 21 user submitted interviews for this role. To compare, the hiring process at Citadel overall takes an average of 20 days.
Common stages of the interview process at Citadel as a Quant Researcher according to 21 Glassdoor interviews include:
Phone interview: 35%
One on one interview: 25%
Skills test: 15%
Presentation: 10%
Drug test: 5%
Personality test: 5%
IQ intelligence test: 5%
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